Improvement in sash-fasteners



M. MOOOMB. Sash-Fastener.

Patenged Feb. 5,1

N. PETERS. PHOTO-LATHOGRAPHER. WASHXNGTON. D. C

UNITED STATES PATENT OEEIcE.

IVLARSHALL MOOOM'B, OF PITTSBUBG, PENNSYLVANIA.

IMPROVEMENT IN SASH-FASTENERS.

Specification forming part of Letters Patent No. 199,920, dated February5,1878; application filed December 1, 1877.

To all whom it may concern Be it known that I, MARSHALL McGoMB, ofPittsburg, Allegheny county, Pennsylvania, have invented Improvements inAttachments for Windows, of which the following is a specification:

My invention relates to devices for retaining and looking a sash in itsposition; and consists of a two-armed lever provided with trunnions, andadapted to a seat in the frame, or in a block adapted to the frame, anda sash having certain peculiarly-arranged shoulders adapted to engagewith one arm of the lever, as shown in the drawings, thus locking thesash against movement in either direction, all as hereinafter more fullydescribed and claimed.

Figure 1 is a front elevation, partly in section, of my improved window;Figs. 2 and 3, transverse sectional elevations; Fig. 4, a perspectiveview of the locking devjce detached; and Figs. 5, 6, and 7,modifications.

The frame A has ribs to a, between which slide'the sashes O.

In order to retain the sashes in place and secure them after adjustment,I employ L- shaped levers .1, adapted to recesses in the frame, withwhich may be used peculiarlyshaped notched plates or bars J, adapted torecesses in the corners of the sashes.

Each lever I has trimnions n a cast on the same, which trunnions areadapted to seats formed in the frame, so that the upper arm j of eachlever will enter the notch in the edge of the sash, while the arm f isat one side of the arm f, andprojects through a notch in the rib andacross the face of the sash.

The arm f of the lever securing the outer sash may be blunt-ended, asshown in Fig. 7, as it is not necessary to lock the said sash down ;,butthe arm of the lever securing the inner sash has a hooked projection, m,which, catching on inclined shoulders s at the edge of the sash,securely holds it in place, preventing the sash from being raised, whilethe blunt end, bearing on shoulders t, prevents the sash fromdescending, the arm f serving to throw the arm f back into the recess atany time the sash requires adjustment.

A spring, a, may be used to insure the forward movement of the arm f,although in most instances the weight of the arm f is sutficient; and asocketed block, K, may be employed to afford a firm and durable bearingfor the trunnions of the lever.

In place of notching the edge of the sash, the latter may be recessed,and the strip or aforesaid bar of metal J, having shoulders s i, may beinserted in an angular groove, '12, at the edge of the sash, the saidstrip being of any suitable form, as shown in Figs. 1, 5, and 6.

As the levers I, bearings K, and bars J may be readily cast withoutcores, they form extremely cheap attachments, and the simplicity oftheir construction, the ease with which they may be applied, and theefficiency of their operation render the window, of which they form apart, specially adapted for use in cheap houses, or where skilled laborcannot be procured.

It will be seen that the lever I, having arms ff and trunnions n n,constitutes a salable article of manufacture, adapted to be applied toordinary windows.

I do not here claim the construction of the window, as it will form thesubject of another application for Letters Patent; but

I claim-- v 1. The combination of the sash, its shoulders s t, and leverI, its arms f f, and hooked projection m, as described.

2. The combination of the lever I and bearing-block K, constructed andadapted to each other, and to be applied to a window, as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

MARSHALL MGOOMB.

Witnesses:

CHARLES E. FosTER, JNo. D. PATTEN.

